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1 /***************************************************************************/ | |
2 /* */ | |
3 /* ftconfig.h */ | |
4 /* */ | |
5 /* ANSI-specific configuration file (specification only). */ | |
6 /* */ | |
7 /* Copyright 1996-2004, 2006-2008, 2010-2011, 2013 by */ | |
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
9 /* */ | |
10 /* This file is part of the FreeType project, and may only be used, */ | |
11 /* modified, and distributed under the terms of the FreeType project */ | |
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
13 /* this file you indicate that you have read the license and */ | |
14 /* understand and accept it fully. */ | |
15 /* */ | |
16 /***************************************************************************/ | |
17 | |
18 | |
19 /*************************************************************************/ | |
20 /* */ | |
21 /* This header file contains a number of macro definitions that are used */ | |
22 /* by the rest of the engine. Most of the macros here are automatically */ | |
23 /* determined at compile time, and you should not need to change it to */ | |
24 /* port FreeType, except to compile the library with a non-ANSI */ | |
25 /* compiler. */ | |
26 /* */ | |
27 /* Note however that if some specific modifications are needed, we */ | |
28 /* advise you to place a modified copy in your build directory. */ | |
29 /* */ | |
30 /* The build directory is usually `freetype/builds/<system>', and */ | |
31 /* contains system-specific files that are always included first when */ | |
32 /* building the library. */ | |
33 /* */ | |
34 /* This ANSI version should stay in `include/freetype/config'. */ | |
35 /* */ | |
36 /*************************************************************************/ | |
37 | |
38 #ifndef __FTCONFIG_H__ | |
39 #define __FTCONFIG_H__ | |
40 | |
41 #include "../../ft2build.h" | |
42 #include "ftoption.h" | |
43 #include "ftstdlib.h" | |
44 | |
45 | |
46 FT_BEGIN_HEADER | |
47 | |
48 | |
49 /*************************************************************************/ | |
50 /* */ | |
51 /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ | |
52 /* */ | |
53 /* These macros can be toggled to suit a specific system. The current */ | |
54 /* ones are defaults used to compile FreeType in an ANSI C environment */ | |
55 /* (16bit compilers are also supported). Copy this file to your own */ | |
56 /* `freetype/builds/<system>' directory, and edit it to port the engine. */ | |
57 /* */ | |
58 /*************************************************************************/ | |
59 | |
60 | |
61 /* There are systems (like the Texas Instruments 'C54x) where a `char' */ | |
62 /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ | |
63 /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ | |
64 /* is probably unexpected. */ | |
65 /* */ | |
66 /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ | |
67 /* `char' type. */ | |
68 | |
69 #ifndef FT_CHAR_BIT | |
70 #define FT_CHAR_BIT CHAR_BIT | |
71 #endif | |
72 | |
73 | |
74 /* The size of an `int' type. */ | |
75 #if FT_UINT_MAX == 0xFFFFUL | |
76 #define FT_SIZEOF_INT (16 / FT_CHAR_BIT) | |
77 #elif FT_UINT_MAX == 0xFFFFFFFFUL | |
78 #define FT_SIZEOF_INT (32 / FT_CHAR_BIT) | |
79 #elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL | |
80 #define FT_SIZEOF_INT (64 / FT_CHAR_BIT) | |
81 #else | |
82 #error "Unsupported size of `int' type!" | |
83 #endif | |
84 | |
85 /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ | |
86 /* DM642) is recognized but avoided. */ | |
87 #if FT_ULONG_MAX == 0xFFFFFFFFUL | |
88 #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) | |
89 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL | |
90 #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) | |
91 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL | |
92 #define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) | |
93 #else | |
94 #error "Unsupported size of `long' type!" | |
95 #endif | |
96 | |
97 | |
98 /* FT_UNUSED is a macro used to indicate that a given parameter is not */ | |
99 /* used -- this is only used to get rid of unpleasant compiler warnings */ | |
100 #ifndef FT_UNUSED | |
101 #define FT_UNUSED( arg ) ( (arg) = (arg) ) | |
102 #endif | |
103 | |
104 | |
105 /*************************************************************************/ | |
106 /* */ | |
107 /* AUTOMATIC CONFIGURATION MACROS */ | |
108 /* */ | |
109 /* These macros are computed from the ones defined above. Don't touch */ | |
110 /* their definition, unless you know precisely what you are doing. No */ | |
111 /* porter should need to mess with them. */ | |
112 /* */ | |
113 /*************************************************************************/ | |
114 | |
115 | |
116 /*************************************************************************/ | |
117 /* */ | |
118 /* Mac support */ | |
119 /* */ | |
120 /* This is the only necessary change, so it is defined here instead */ | |
121 /* providing a new configuration file. */ | |
122 /* */ | |
123 #if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) ) | |
124 /* no Carbon frameworks for 64bit 10.4.x */ | |
125 /* AvailabilityMacros.h is available since Mac OS X 10.2, */ | |
126 /* so guess the system version by maximum errno before inclusion */ | |
127 #include <errno.h> | |
128 #ifdef ECANCELED /* defined since 10.2 */ | |
129 #include "AvailabilityMacros.h" | |
130 #endif | |
131 #if defined( __LP64__ ) && \ | |
132 ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) | |
133 #undef FT_MACINTOSH | |
134 #endif | |
135 | |
136 #elif defined( __SC__ ) || defined( __MRC__ ) | |
137 /* Classic MacOS compilers */ | |
138 #include "ConditionalMacros.h" | |
139 #if TARGET_OS_MAC | |
140 #define FT_MACINTOSH 1 | |
141 #endif | |
142 | |
143 #endif | |
144 | |
145 | |
146 /*************************************************************************/ | |
147 /* */ | |
148 /* <Section> */ | |
149 /* basic_types */ | |
150 /* */ | |
151 /*************************************************************************/ | |
152 | |
153 | |
154 /*************************************************************************/ | |
155 /* */ | |
156 /* <Type> */ | |
157 /* FT_Int16 */ | |
158 /* */ | |
159 /* <Description> */ | |
160 /* A typedef for a 16bit signed integer type. */ | |
161 /* */ | |
162 typedef signed short FT_Int16; | |
163 | |
164 | |
165 /*************************************************************************/ | |
166 /* */ | |
167 /* <Type> */ | |
168 /* FT_UInt16 */ | |
169 /* */ | |
170 /* <Description> */ | |
171 /* A typedef for a 16bit unsigned integer type. */ | |
172 /* */ | |
173 typedef unsigned short FT_UInt16; | |
174 | |
175 /* */ | |
176 | |
177 | |
178 /* this #if 0 ... #endif clause is for documentation purposes */ | |
179 #if 0 | |
180 | |
181 /*************************************************************************/ | |
182 /* */ | |
183 /* <Type> */ | |
184 /* FT_Int32 */ | |
185 /* */ | |
186 /* <Description> */ | |
187 /* A typedef for a 32bit signed integer type. The size depends on */ | |
188 /* the configuration. */ | |
189 /* */ | |
190 typedef signed XXX FT_Int32; | |
191 | |
192 | |
193 /*************************************************************************/ | |
194 /* */ | |
195 /* <Type> */ | |
196 /* FT_UInt32 */ | |
197 /* */ | |
198 /* A typedef for a 32bit unsigned integer type. The size depends on */ | |
199 /* the configuration. */ | |
200 /* */ | |
201 typedef unsigned XXX FT_UInt32; | |
202 | |
203 | |
204 /*************************************************************************/ | |
205 /* */ | |
206 /* <Type> */ | |
207 /* FT_Int64 */ | |
208 /* */ | |
209 /* A typedef for a 64bit signed integer type. The size depends on */ | |
210 /* the configuration. Only defined if there is real 64bit support; */ | |
211 /* otherwise, it gets emulated with a structure (if necessary). */ | |
212 /* */ | |
213 typedef signed XXX FT_Int64; | |
214 | |
215 | |
216 /*************************************************************************/ | |
217 /* */ | |
218 /* <Type> */ | |
219 /* FT_UInt64 */ | |
220 /* */ | |
221 /* A typedef for a 64bit unsigned integer type. The size depends on */ | |
222 /* the configuration. Only defined if there is real 64bit support; */ | |
223 /* otherwise, it gets emulated with a structure (if necessary). */ | |
224 /* */ | |
225 typedef unsigned XXX FT_UInt64; | |
226 | |
227 /* */ | |
228 | |
229 #endif | |
230 | |
231 #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) | |
232 | |
233 typedef signed int FT_Int32; | |
234 typedef unsigned int FT_UInt32; | |
235 | |
236 #elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) | |
237 | |
238 typedef signed long FT_Int32; | |
239 typedef unsigned long FT_UInt32; | |
240 | |
241 #else | |
242 #error "no 32bit type found -- please check your configuration files" | |
243 #endif | |
244 | |
245 | |
246 /* look up an integer type that is at least 32 bits */ | |
247 #if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) | |
248 | |
249 typedef int FT_Fast; | |
250 typedef unsigned int FT_UFast; | |
251 | |
252 #elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) | |
253 | |
254 typedef long FT_Fast; | |
255 typedef unsigned long FT_UFast; | |
256 | |
257 #endif | |
258 | |
259 | |
260 /* determine whether we have a 64-bit int type for platforms without */ | |
261 /* Autoconf */ | |
262 #if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) | |
263 | |
264 /* FT_LONG64 must be defined if a 64-bit type is available */ | |
265 #define FT_LONG64 | |
266 #define FT_INT64 long | |
267 #define FT_UINT64 unsigned long | |
268 | |
269 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ | |
270 | |
271 /* this compiler provides the __int64 type */ | |
272 #define FT_LONG64 | |
273 #define FT_INT64 __int64 | |
274 #define FT_UINT64 unsigned __int64 | |
275 | |
276 #elif defined( __BORLANDC__ ) /* Borland C++ */ | |
277 | |
278 /* XXXX: We should probably check the value of __BORLANDC__ in order */ | |
279 /* to test the compiler version. */ | |
280 | |
281 /* this compiler provides the __int64 type */ | |
282 #define FT_LONG64 | |
283 #define FT_INT64 __int64 | |
284 #define FT_UINT64 unsigned __int64 | |
285 | |
286 #elif defined( __WATCOMC__ ) /* Watcom C++ */ | |
287 | |
288 /* Watcom doesn't provide 64-bit data types */ | |
289 | |
290 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ | |
291 | |
292 #define FT_LONG64 | |
293 #define FT_INT64 long long int | |
294 #define FT_UINT64 unsigned long long int | |
295 | |
296 #elif defined( __GNUC__ ) | |
297 | |
298 /* GCC provides the `long long' type */ | |
299 #define FT_LONG64 | |
300 #define FT_INT64 long long int | |
301 #define FT_UINT64 unsigned long long int | |
302 | |
303 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ | |
304 | |
305 | |
306 /*************************************************************************/ | |
307 /* */ | |
308 /* A 64-bit data type will create compilation problems if you compile */ | |
309 /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ | |
310 /* is defined. You can however ignore this rule by defining the */ | |
311 /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ | |
312 /* */ | |
313 #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) | |
314 | |
315 #ifdef __STDC__ | |
316 | |
317 /* undefine the 64-bit macros in strict ANSI compilation mode */ | |
318 #undef FT_LONG64 | |
319 #undef FT_INT64 | |
320 | |
321 #endif /* __STDC__ */ | |
322 | |
323 #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ | |
324 | |
325 #ifdef FT_LONG64 | |
326 typedef FT_INT64 FT_Int64; | |
327 typedef FT_UINT64 FT_UInt64; | |
328 #endif | |
329 | |
330 | |
331 #define FT_BEGIN_STMNT do { | |
332 #define FT_END_STMNT } while ( 0 ) | |
333 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT | |
334 | |
335 | |
336 #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER | |
337 /* Provide assembler fragments for performance-critical functions. */ | |
338 /* These must be defined `static __inline__' with GCC. */ | |
339 | |
340 /**Johnson add !defined( __thumb__ )*/ | |
341 #if (defined( __CC_ARM ) || defined( __ARMCC__ ))&& !defined( __thumb__ ) /* RV
CT */ | |
342 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm | |
343 | |
344 /* documentation is in freetype.h */ | |
345 | |
346 static __inline FT_Int32 | |
347 FT_MulFix_arm( FT_Int32 a, | |
348 FT_Int32 b ) | |
349 { | |
350 register FT_Int32 t, t2; | |
351 | |
352 | |
353 __asm | |
354 { | |
355 smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ | |
356 mov a, t, asr #31 /* a = (hi >> 31) */ | |
357 add a, a, #0x8000 /* a += 0x8000 */ | |
358 adds t2, t2, a /* t2 += a */ | |
359 adc t, t, #0 /* t += carry */ | |
360 mov a, t2, lsr #16 /* a = t2 >> 16 */ | |
361 orr a, a, t, lsl #16 /* a |= t << 16 */ | |
362 } | |
363 return a; | |
364 } | |
365 | |
366 #endif /* __CC_ARM || __ARMCC__ */ | |
367 | |
368 | |
369 #ifdef __GNUC__ | |
370 | |
371 #if defined( __arm__ ) && !defined( __thumb__ ) && \ | |
372 !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) | |
373 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm | |
374 | |
375 /* documentation is in freetype.h */ | |
376 | |
377 static __inline__ FT_Int32 | |
378 FT_MulFix_arm( FT_Int32 a, | |
379 FT_Int32 b ) | |
380 { | |
381 register FT_Int32 t, t2; | |
382 | |
383 | |
384 __asm__ __volatile__ ( | |
385 "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ | |
386 "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ | |
387 "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ | |
388 "adds %1, %1, %0\n\t" /* %1 += %0 */ | |
389 "adc %2, %2, #0\n\t" /* %2 += carry */ | |
390 "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ | |
391 "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ | |
392 : "=r"(a), "=&r"(t2), "=&r"(t) | |
393 : "r"(a), "r"(b) | |
394 : "cc" ); | |
395 return a; | |
396 } | |
397 | |
398 #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ | |
399 | |
400 #if defined( __i386__ ) | |
401 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 | |
402 | |
403 /* documentation is in freetype.h */ | |
404 | |
405 static __inline__ FT_Int32 | |
406 FT_MulFix_i386( FT_Int32 a, | |
407 FT_Int32 b ) | |
408 { | |
409 register FT_Int32 result; | |
410 | |
411 | |
412 __asm__ __volatile__ ( | |
413 "imul %%edx\n" | |
414 "movl %%edx, %%ecx\n" | |
415 "sarl $31, %%ecx\n" | |
416 "addl $0x8000, %%ecx\n" | |
417 "addl %%ecx, %%eax\n" | |
418 "adcl $0, %%edx\n" | |
419 "shrl $16, %%eax\n" | |
420 "shll $16, %%edx\n" | |
421 "addl %%edx, %%eax\n" | |
422 : "=a"(result), "=d"(b) | |
423 : "a"(a), "d"(b) | |
424 : "%ecx", "cc" ); | |
425 return result; | |
426 } | |
427 | |
428 #endif /* i386 */ | |
429 | |
430 #endif /* __GNUC__ */ | |
431 | |
432 | |
433 #ifdef _MSC_VER /* Visual C++ */ | |
434 | |
435 #ifdef _M_IX86 | |
436 | |
437 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 | |
438 | |
439 /* documentation is in freetype.h */ | |
440 | |
441 static __inline FT_Int32 | |
442 FT_MulFix_i386( FT_Int32 a, | |
443 FT_Int32 b ) | |
444 { | |
445 register FT_Int32 result; | |
446 | |
447 __asm | |
448 { | |
449 mov eax, a | |
450 mov edx, b | |
451 imul edx | |
452 mov ecx, edx | |
453 sar ecx, 31 | |
454 add ecx, 8000h | |
455 add eax, ecx | |
456 adc edx, 0 | |
457 shr eax, 16 | |
458 shl edx, 16 | |
459 add eax, edx | |
460 mov result, eax | |
461 } | |
462 return result; | |
463 } | |
464 | |
465 #endif /* _M_IX86 */ | |
466 | |
467 #endif /* _MSC_VER */ | |
468 | |
469 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ | |
470 | |
471 | |
472 #ifdef FT_CONFIG_OPTION_INLINE_MULFIX | |
473 #ifdef FT_MULFIX_ASSEMBLER | |
474 #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER | |
475 #endif | |
476 #endif | |
477 | |
478 | |
479 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT | |
480 | |
481 #define FT_LOCAL( x ) static x | |
482 #define FT_LOCAL_DEF( x ) static x | |
483 | |
484 #else | |
485 | |
486 #ifdef __cplusplus | |
487 #define FT_LOCAL( x ) extern "C" x | |
488 #define FT_LOCAL_DEF( x ) extern "C" x | |
489 #else | |
490 #define FT_LOCAL( x ) extern x | |
491 #define FT_LOCAL_DEF( x ) x | |
492 #endif | |
493 | |
494 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ | |
495 | |
496 | |
497 #ifndef FT_BASE | |
498 | |
499 #ifdef __cplusplus | |
500 #define FT_BASE( x ) extern "C" x | |
501 #else | |
502 #define FT_BASE( x ) extern x | |
503 #endif | |
504 | |
505 #endif /* !FT_BASE */ | |
506 | |
507 | |
508 #ifndef FT_BASE_DEF | |
509 | |
510 #ifdef __cplusplus | |
511 #define FT_BASE_DEF( x ) x | |
512 #else | |
513 #define FT_BASE_DEF( x ) x | |
514 #endif | |
515 | |
516 #endif /* !FT_BASE_DEF */ | |
517 | |
518 | |
519 #ifndef FT_EXPORT | |
520 | |
521 #ifdef __cplusplus | |
522 #define FT_EXPORT( x ) extern "C" x | |
523 #else | |
524 #define FT_EXPORT( x ) extern x | |
525 #endif | |
526 | |
527 #endif /* !FT_EXPORT */ | |
528 | |
529 | |
530 #ifndef FT_EXPORT_DEF | |
531 | |
532 #ifdef __cplusplus | |
533 #define FT_EXPORT_DEF( x ) extern "C" x | |
534 #else | |
535 #define FT_EXPORT_DEF( x ) extern x | |
536 #endif | |
537 | |
538 #endif /* !FT_EXPORT_DEF */ | |
539 | |
540 | |
541 #ifndef FT_EXPORT_VAR | |
542 | |
543 #ifdef __cplusplus | |
544 #define FT_EXPORT_VAR( x ) extern "C" x | |
545 #else | |
546 #define FT_EXPORT_VAR( x ) extern x | |
547 #endif | |
548 | |
549 #endif /* !FT_EXPORT_VAR */ | |
550 | |
551 /* The following macros are needed to compile the library with a */ | |
552 /* C++ compiler and with 16bit compilers. */ | |
553 /* */ | |
554 | |
555 /* This is special. Within C++, you must specify `extern "C"' for */ | |
556 /* functions which are used via function pointers, and you also */ | |
557 /* must do that for structures which contain function pointers to */ | |
558 /* assure C linkage -- it's not possible to have (local) anonymous */ | |
559 /* functions which are accessed by (global) function pointers. */ | |
560 /* */ | |
561 /* */ | |
562 /* FT_CALLBACK_DEF is used to _define_ a callback function. */ | |
563 /* */ | |
564 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ | |
565 /* contains pointers to callback functions. */ | |
566 /* */ | |
567 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ | |
568 /* that contains pointers to callback functions. */ | |
569 /* */ | |
570 /* */ | |
571 /* Some 16bit compilers have to redefine these macros to insert */ | |
572 /* the infamous `_cdecl' or `__fastcall' declarations. */ | |
573 /* */ | |
574 #ifndef FT_CALLBACK_DEF | |
575 #ifdef __cplusplus | |
576 #define FT_CALLBACK_DEF( x ) extern "C" x | |
577 #else | |
578 #define FT_CALLBACK_DEF( x ) static x | |
579 #endif | |
580 #endif /* FT_CALLBACK_DEF */ | |
581 | |
582 #ifndef FT_CALLBACK_TABLE | |
583 #ifdef __cplusplus | |
584 #define FT_CALLBACK_TABLE extern "C" | |
585 #define FT_CALLBACK_TABLE_DEF extern "C" | |
586 #else | |
587 #define FT_CALLBACK_TABLE extern | |
588 #define FT_CALLBACK_TABLE_DEF /* nothing */ | |
589 #endif | |
590 #endif /* FT_CALLBACK_TABLE */ | |
591 | |
592 | |
593 FT_END_HEADER | |
594 | |
595 | |
596 #endif /* __FTCONFIG_H__ */ | |
597 | |
598 | |
599 /* END */ | |
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